CN212461415U - Aluminum electrolytic capacitor with leakage-proof structure - Google Patents
Aluminum electrolytic capacitor with leakage-proof structure Download PDFInfo
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- CN212461415U CN212461415U CN202020661322.1U CN202020661322U CN212461415U CN 212461415 U CN212461415 U CN 212461415U CN 202020661322 U CN202020661322 U CN 202020661322U CN 212461415 U CN212461415 U CN 212461415U
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Abstract
The utility model discloses an aluminum electrolytic capacitor with anti-leakage structure, which belongs to the technical field of capacitors and comprises a capacitor main body, wherein the inner part of the capacitor main body is fixedly connected with a sealing membrane, the sealing membrane comprises an anti-explosion sealing part, the middle part of the lower end surface of the anti-explosion sealing part is provided with a concave ring part, the inner part of the concave ring part forms an anti-explosion sealing part, the lower end surface of a cover plate is embedded with an anti-explosion valve, the upper end surface of the anti-explosion valve is fixedly connected with an anti-explosion channel, the upper end of the anti-explosion channel is embedded into the inner part of the concave ring part, the inner part of the anti-explosion channel is fixedly connected with an adsorption material, in the pressure relief process of the structure, because the generated gas only needs to be flushed out the anti-explosion sealing part and then enters the anti-explosion channel to be adsorbed in pressure relief, the problem, and time guarantee is provided for the discovery process of workers.
Description
Technical Field
The utility model relates to the technical field of capacitors, in particular to an aluminum electrolytic capacitor with a leakage-proof structure.
Background
At present, aluminum electrolytic capacitor has a large amount of uses in various electronic circuits, circuit board, plays more and more important effect in daily life, has strong corrosive electrolyte in the aluminum electrolytic capacitor, can produce a large amount of gases when aluminum electrolytic capacitor breaks down, and then the phenomenon that gas rushes out the explosion-proof valve appears, inside electrolyte this moment often can be along with high-pressure gas together follow the explosion-proof valve blowout, spun electrolyte can lead to polluting the emergence of corroding even leading to the short circuit to circuit board and components and parts on every side.
The utility model discloses a CN207663942U discloses an aluminum electrolytic capacitor with anti-leakage structure, this structure pressure release in-process, because the gas that produces can not carry out local break through to the seal membrane, and then electrolyte in the whole condenser enters into the problem that causes the adsorption material to be difficult to adsorb the electrolyte in the whole condenser easily in the adsorption material to electrolyte leaks the speed ratio in the adsorption material fast, can not provide the time guarantee to staff's discovery processing.
SUMMERY OF THE UTILITY MODEL
The utility model provides an aluminum electrolytic capacitor with prevent leaking structure aims at solving current aluminum electrolytic capacitor who has the structure of preventing leaking, this structure pressure release in-process, because the gas that produces can not carry out the local break-through to the seal membrane, and then electrolyte in the whole condenser enters into the problem that causes the adsorption material to be difficult to adsorb the electrolyte in the whole condenser easily in the adsorption material, and the speed that electrolyte leaks in the adsorption material is comparatively fast, can not provide the problem of time guarantee to staff's discovery processing.
The utility model discloses a realize like this, an aluminum electrolytic capacitor with prevent leaking structure, including the condenser main part, the lower terminal surface of condenser main part can be dismantled and is connected with the apron, the inside fixedly connected with seal membrane of condenser main part, the seal membrane includes explosion-proof seal portion, the concave ring portion has been seted up at explosion-proof seal portion's lower terminal surface middle part, the inside of concave ring portion forms explosion-proof seal portion, the lower terminal surface embedding of apron is provided with explosion-proof valve, the explosion-proof passageway of the up end fixedly connected with of explosion-proof valve, the inside of explosion-proof passageway's upper end embedding concave ring portion, the inside of explosion-proof passageway of explosion-proof seal portion embedding, the inside fixedly connected with adsorption material of explosion-proof passageway, the up end of adsorption material closely laminates with explosion-proof seal portion's lower terminal.
In order to facilitate the gas to break the explosion-proof sealing part, the aluminum electrolytic capacitor with the anti-leakage structure is preferable, the difference between the explosion-proof pressure of the explosion-proof sealing part and the explosion-proof pressure of the explosion-proof valve is less than 0.2MPa, and the thickness of the explosion-proof sealing part is greater than that of the explosion-proof sealing part.
In order to improve the leakproofness at explosion-proof passageway and seal membrane connection position, as the utility model discloses an aluminum electrolytic capacitor with prevent leaking the structure is preferred, the outer wall diameter of concave ring portion is the same with explosion-proof passageway's outer wall diameter, but the diameter of explosion-proof sealing portion is the same with explosion-proof passageway's inner wall diameter.
The adsorptivity is good during electrolyte that explodes in order to make adsorbing material absorption, and chemical property is stable to high temperature resistant improves the efficiency that adsorbs explosion electrolyte, as the utility model discloses an aluminum electrolytic capacitor with prevent leaking the structure is preferred, the material of adsorbing material is active carbon, active alumina or high temperature asbestos.
In order to make this seal membrane high to the leakproofness of electrolyte, as the utility model discloses an aluminum electrolytic capacitor with prevent leaking the structure is preferred, the material of seal membrane is teflon or silicon rubber.
Compared with the prior art, the beneficial effects of the utility model are that:
1. when a large amount of gas is generated to release pressure through the explosion-proof valve when the aluminum electrolytic capacitor breaks down, the generated gas breaks the explosion-proof sealing part, then the generated gas and part of electrolyte enter the explosion-proof channel together, the entered electrolyte is adsorbed by the adsorbing material, and the adsorbed gas breaks the explosion-proof valve to release pressure;
2. the difference between the explosion-proof pressure of the explosion-proof sealing part and the explosion-proof pressure of the explosion-proof valve is less than 0.2MPa, the thickness of the explosion-proof sealing part is greater than that of the explosion-proof sealing part, and therefore when a large amount of gas is generated to release pressure through the explosion-proof valve when the aluminum electrolytic capacitor breaks down, the gas can conveniently burst the explosion-proof sealing part.
Drawings
FIG. 1 is a cross-sectional view of an aluminum electrolytic capacitor with a leakage-proof structure according to the present invention;
fig. 2 is a bottom view of the sealing film of the present invention.
In the figure: 1. a capacitor body; 101. a cover plate; 2. a sealing film; 201. an explosive seal; 202. a recessed ring portion; 203. an explosion-proof seal portion; 3. an explosion-proof valve; 301. an explosion-proof channel; 4. adsorbing the material.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an aluminum electrolytic capacitor with prevent leakage structure, including capacitor body 1, capacitor body 1's lower terminal surface can be dismantled and be connected with apron 101, capacitor body 1's inside fixedly connected with seal membrane 2, seal membrane 2 includes explosion-proof sealing part 203, concave ring portion 202 has been seted up at the lower terminal surface middle part of explosion-proof sealing part 203, the inside of concave ring portion 202 forms explosion-proof sealing part 201, the lower terminal surface embedding of apron 101 is provided with explosion-proof valve 3, the explosion-proof passageway 301 of the up end fixedly connected with of explosion-proof valve 3, the inside of explosion-proof passageway 301's upper end embedding concave ring portion 202, the inside of explosion-proof passageway 301 is inlayed to explosion-proof sealing part 201, the inside fixedly connected with adsorption material 4 of explosion-proof passageway 301, the up end of adsorption material 4 closely laminates with the.
In this embodiment: when aluminium electrolytic capacitor broke down and produced a large amount of gas and carry out the pressure release through explosion-proof valve 3, but the gas of production breaks explosion-proof sealing portion 201, the gas that produces then gets into explosion-proof passageway 301 together with partial electrolyte, the electrolyte of entering adsorbs through adsorption material 4, gas after the absorption breaks explosion-proof valve 3 open and carries out the pressure release, this structure pressure release in-process, because the gas that produces only need break explosion-proof sealing portion 201 and then get into explosion-proof passageway 301 internal adsorption at the pressure release, and then avoid adsorption material 4 to carry out absorbent problem with the electrolyte in whole capacitor main part 1, the speed that electrolyte leaked in adsorption material 4 has been reduced, discovery to the staff is handled and is provided the time guarantee.
As a technical optimization scheme of the utility model, the difference between the explosion-proof pressure of explosion-proof sealing portion 201 and the explosion-proof pressure of explosion-proof valve 3 is less than 0.2MPa, and the thickness of explosion-proof sealing portion 203 is greater than the thickness of explosion-proof sealing portion 201.
In this embodiment: the difference between the explosion-proof pressure of the explosion-proof sealing part 201 and the explosion-proof pressure of the explosion-proof valve 3 is less than 0.2MPa, the thickness of the explosion-proof sealing part 203 is greater than that of the explosion-proof sealing part 201, and therefore when a large amount of gas generated during the failure of the aluminum electrolytic capacitor is decompressed through the explosion-proof valve 3, the gas can conveniently burst the explosion-proof sealing part 201.
As a technical optimization scheme of the utility model, the outer wall diameter of concave ring portion 202 is the same with explosion-proof passageway 301's outer wall diameter, and the diameter that can explode sealing 201 is the same with explosion-proof passageway 301's inner wall diameter.
In this embodiment: the diameter of the outer wall of the concave ring part 202 is the same as that of the outer wall of the explosion-proof channel 301, the diameter of the explosion-proof sealing part 201 is the same as that of the inner wall of the explosion-proof channel 301, so that the explosion-proof channel 301 is tightly attached to the inner side wall of the concave ring part 202 and the outer side wall of the explosion-proof sealing part 201, and the sealing performance of the connecting part of the explosion-proof channel 301 and the sealing film 2 is improved.
As a technical optimization scheme of the utility model, the material of the adsorption material 4 is activated carbon, activated alumina or high-temperature asbestos.
In this embodiment: the material through adsorbing material 4 is active carbon, active alumina or high temperature asbestos, and then the adsorptivity is good when adsorbing the electrolyte that explodes through adsorbing material 4, and chemical property is stable to high temperature resistant has improved the efficiency of adsorbing the electrolyte that explodes.
As a technical optimization scheme of the utility model, the material of the sealing film 2 is Teflon or silicon rubber.
In this embodiment: the sealing film 2 is made of teflon or silicon rubber, so that the sealing performance of the sealing film 2 on electrolyte is high.
The working principle is as follows: when a large amount of gas generated by the aluminum electrolytic capacitor is in failure is released through the explosion-proof valve 3, the generated gas breaks the explosion-proof sealing part 201, then the generated gas and part of electrolyte enter the explosion-proof channel 301 together, the entered electrolyte is adsorbed by the adsorbing material 4, and the adsorbed gas breaks the explosion-proof valve 3 for pressure release, in the pressure release process of the structure, because the generated gas only needs to break the explosion-proof sealing part 201 and then enter the explosion-proof channel 301 for adsorption and pressure release, the problem that the generated gas is difficult to adsorb the electrolyte in the whole capacitor main body 1 is avoided, the speed of the electrolyte leaking into the adsorbing material 4 is reduced, time guarantee is provided for discovery and treatment of working personnel, the diameter of the outer wall of the concave ring part 202 is the same as that of the outer wall of the explosion-proof channel 301, and the diameter of the explosion-proof sealing part 201 is the same as that of the inner wall of the explosion-, thereby facilitating the close fitting of the explosion-proof channel 301 with the inner side wall of the concave ring part 202 and the outer side wall of the explosion-proof sealing part 201, and improving the sealing performance of the connecting part of the explosion-proof channel 301 and the sealing film 2.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. An aluminum electrolytic capacitor with a leakage-proof structure, comprising a capacitor body (1), wherein a cover plate (101) is detachably connected to the lower end surface of the capacitor body (1), characterized in that: the inside fixedly connected with seal membrane (2) of condenser main part (1), seal membrane (2) are including explosion-proof sealing portion (203), concave ring portion (202) have been seted up at the lower terminal surface middle part of explosion-proof sealing portion (203), but the inside formation explosion-proof sealing portion (201) of concave ring portion (202), the lower terminal surface embedding of apron (101) is provided with explosion-proof valve (3), the explosion-proof passageway (301) of the up end fixedly connected with of explosion-proof valve (3), the inside of the upper end embedding concave ring portion (202) of explosion-proof passageway (301), but the inside of explosion-proof passageway (301) of explosion-proof sealing portion (201) embedding, the inside fixedly connected with adsorbing material (4) of explosion-proof passageway (301), the up end of adsorbing material (4) closely laminates with the lower terminal surface of explosion-proof sealing portion (201).
2. An aluminum electrolytic capacitor with a leakage preventing structure as recited in claim 1, wherein: the difference between the explosion-proof pressure of the explosion-proof sealing part (201) and the explosion-proof pressure of the explosion-proof valve (3) is less than 0.2MPa, and the thickness of the explosion-proof sealing part (203) is greater than that of the explosion-proof sealing part (201).
3. An aluminum electrolytic capacitor with a leakage preventing structure as recited in claim 1, wherein: the diameter of the outer wall of the concave ring part (202) is the same as that of the outer wall of the explosion-proof channel (301), and the diameter of the explosion-proof sealing part (201) is the same as that of the inner wall of the explosion-proof channel (301).
4. An aluminum electrolytic capacitor with a leakage preventing structure as recited in claim 1, wherein: the material of the adsorption material (4) is activated carbon, activated alumina or high-temperature asbestos.
5. An aluminum electrolytic capacitor with a leakage preventing structure as recited in claim 1, wherein: the sealing film (2) is made of Teflon or silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020661322.1U CN212461415U (en) | 2020-04-26 | 2020-04-26 | Aluminum electrolytic capacitor with leakage-proof structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020661322.1U CN212461415U (en) | 2020-04-26 | 2020-04-26 | Aluminum electrolytic capacitor with leakage-proof structure |
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| CN212461415U true CN212461415U (en) | 2021-02-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114864289A (en) * | 2022-05-21 | 2022-08-05 | 深圳康诚达电子有限公司 | Circulation type explosion-proof capacitor |
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2020
- 2020-04-26 CN CN202020661322.1U patent/CN212461415U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114864289A (en) * | 2022-05-21 | 2022-08-05 | 深圳康诚达电子有限公司 | Circulation type explosion-proof capacitor |
| CN114864289B (en) * | 2022-05-21 | 2023-10-17 | 深圳康诚达电子有限公司 | Circulation type explosion-proof capacitor |
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Effective date of registration: 20211222 Address after: 533300 in Guangxi Guizhou (Tianlin) Economic Industrial Park, Jiuzhou Town, Tianlin County, Baise City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Tianlin baikuang Aluminum Co.,Ltd. Address before: 214000 No.20 Tuanjie Middle Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province Patentee before: Wuxi lingpu Electronic Technology Co.,Ltd. |